A personal, guided tour to the best scoops and stories every day in The Wall Street Journal, from Editor in Chief Gerard Baker.

Belgian police rounded up six more people they said were connected to this week’s terror attacks, as the government yesterday acknowledged high-level counterterrorism failings. The Belgian federal prosecutor’s office said one suicide bomber had been wanted since December in connection with the Paris attacks, and a U.S. official said he and his brother were also on at least one U.S. watch list. While Belgium’s performance has come under harsh criticism, the European Union as a whole has faced...